Pneumatic-tire shoe.



H. A. Rum). PNEUMATIC TIRE SHOE.

APPLICATION FILED MAYISI 1916.

in: NDRMs Fer us can PHOMLIINQ. wunmomn n c.

Patentd Oct. 331916.,

' TE, STATES, PATENT-OFFICE.

HENRYA. RUDD, OF BARBERTON, OHIO, AssIGNoR 0F ONE-HALF TO MICHAELPABIDON, OF BARBER'ION, OHIO.

rNEuMATIc-rtnr. SHOE.

To all whom it may] concern:

Be'it known'that I, HENRY A. 'RUDD, a

citizen of the United States, residing at Barberton, in the county ofSummit and' State of-Ohio, have inventednew and useful Improvements inPneumatic-Tire Shoes, of

'which the following is a' specification.

tions thereof.

- The object of the invention is to provide an improved core adapted forincorporation within the bead of a pneumatic-tire-shoe which willstrengthen the 'same and serve as a means for spacing the cords from whch a tire-shoe may be'constructed.

I It is contemplated as a further object'that the device'is especiallyapplicable for use in a tire-shoe wherein the strength-giving propertiesof the shoe comprise one or more layers of cord to form what is commonlyknown as a cord-tire. 7 Another object of the invention is to provide acore for beads for use in pneumatic-tire-shoes provided with a pair ofantrated in the accompanying drawings which form a part hereof whereinis shown the preferred embodiment of the invention, but

it is to be understood that changes, vari ations and modifications canbe resorted to which come within-the scope of the matter hereinafterclaimed.

In the drawings in which similar reference numerals indicate like partsin the different figures, Figure 1, is ,a transverse sectional view ofthe bead-portion of atire shoe embodying this invention. Fig. 2, is aside elevation of a bead-core embodying this invention. Fig. 3, is aperspective view of the core shown in Fig. 2, and Fig. 4;, is a 1 7Specification of Letters Patent. Applioatio'n filed May 15391:;SerialNo, 97,586;

Patented m3. 1916. a

"view partially in section andpartially in side elevationof so much ofthe bead portion of apneumatic-tire-shoe as will illusp trate thepresent invention.

The core which formsthe subject matter of this invention compr ses twoannularly formed members or'rings 1 and 2 provided with registeringopenings through which are extended clamping or holding members, such,for instance as rivets 3. The inner faces ofthe two members" land 2 areprovided with teeth or notches fl providing between themspaces 5 for apurpose to be later described Interposed between the two'members :1 and2 is a body member of fibrous materialsuch 'as'cloth 6 which may bearranged in'successive layers "or otherwise but preferably so fashionedas to be wedge-shaped in cross section asshow'n in Figs. 1' and 3. Thiscloth will ordinarily be impregnated with a vulcanizable gum portions ofthe tire-shoe when the shoe is 4% constitute retaining means for thecords 7 compound so as to adhere to the 'cord vulcanized. The notchesbetween the teethv of which the body portion of the tire-shoe foutwardlyto the tread as shown in Fig. 4,

but of course, usually at an angle 'approximating 45 degrees to thelongitudinal line of the shoe to form -a single layer. The convolution'sof cords 7 about the core formedby the members 1,2, and 6 will form thebase or nucleus of'thehead of thetire- 5 about which other headmaterial. may be employed as shown in Fig. 1.. By mak: 1

ing the members 1 and 2" of relatively .thin material and clamping themagainst the fibrous material 6 which is relatively thin and containing avulcanizable material tlie two layers of cords forming the body portionof the tire .will be bro gh closely together and the cords or memberswhichform the strength-giving properties of the tire will unite with thefibrous members 6' during. vulcanization and hence no gaps or. openingswill exist between the two layers ,of cords outside of the reinforcingcore members 1 and 2 and all portions; of the body of the shoe willhence be intimately united which would not be true if the interposedlayer of material 6 was not employed.

In ordinary practice if a reinforcement or core is provided'in the beadportion of the shoe and strength-giving cords are arranged as shown inFig. 4 the portions of the cords immediately outside of the core willalways remain in'spa'ced relation thereby providing an air space, whichprevents adhesion or close contact of the two layers of the body portionof the'shoe. The space between the two layers immediately outside of thecore is a source'of weakness which is entirely eliminated by the. use ofa core forming the present invention, the interposed strip .of fibrousmaterial 6 serving to fill this space and affording means to which thetwo layers of cords are intimately united during vulin-extensible bandsadapted to be connected by transversely-extending members and aninterposed fibrous band extend ng in a c1rcumferential direction onlybetween them,

and held in position thereby.

3. A reinforcement adapted to e incorporated in the bead portion of apneumatictire-shoe comprising a pair of metallic rings between which isinterposed an outwardly projecting ring of fibrous material impreg natedwith a vulcanizable compound, and fastening means extending between saidmetallic bands for holding said fibrous band in position.

4. A reinforcement for pneumatic-tireshoe beads comprising a pair ofring-shaped metallic bands, an interposed annular band of'tfibrousmaterial impregnated with a vulcaii'izable compound, clamping meansextending between said metallic bands for clamping said bands againstsaid fibrous band.

5. A reinforcing core for a bead of a pneumatic-tire-shoe comprising tworingshaped bands of inextensible material and a band of fibrous materialinterposed between them and projecting outwardly therefrom, meansextending through said bands for holding them in assembled relation.

6. A reinforcing core for a head of a 'pneumatic-tire-shoe, comprisingtwo ringshaped bands of inextensible material, a band of fibrousmaterial interposed between them and projecting outwardly therefrom andmeans extending through said bands for holding them in assembledrelation, the inner faces of said inextensible bands provided with acircumferentially-extending series of notches. 1

7. A reinforcing core for use in connec} tion with a bead of apneuinatic-tire shoe which comprises two inextensible' bands at rangedin spaced relation, an interposed band of fibrous material, means forclamp-v ing said inextensible bands on said fibrous band, saidinextensible bands each provided on their inner faces with acircumferentially-extending series of notches.

8. A reinforcing core for use in. connec-.

bead portion thereof a pair of annularlyfashioned reinforcing elementsof inextensible material, an annular band of fibrous material wider thansaid elements interposed between them, and coupling means for clampingsaid elements against opposite faces of said fibrous band.

In testimony whereof I have hereunto set my hand.

HENRY A. RUDD.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, D. 0.

